VVR3 in 50 watt JMP

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beasleybodyshop
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VVR3 in 50 watt JMP

Post by beasleybodyshop »

Hello again. I am installing a VVR3 circuit from Hall Amplification onto my JMP clone i built out of an old peavey amp:

What would i need to do to scale just the power tubes? According to the VVR2 instructions, i would need to install a PPIMV (which i really would rather not do) and use an additional capacitor to reduce DC leakage on my guitar volume.

Any thoughts?
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Leo_Gnardo
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Re: VVR3 in 50 watt JMP

Post by Leo_Gnardo »

Please bease, let's make your build work right before adding bells & whistles.
down technical blind alleys . . .
beasleybodyshop
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Re: VVR3 in 50 watt JMP

Post by beasleybodyshop »

Leo_Gnardo wrote:Please bease, let's make your build work right before adding bells & whistles.
I completely agree, I won't touch the VVR until I get my issues sussed out. I was just curious about the absolute necessity of a PPIMV When I want to scale the power section?
"It's like what Lenin said... you look for the person who will benefit, and, uh, uh..."
Firestorm
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Re: VVR3 in 50 watt JMP

Post by Firestorm »

If scale just the output, you have turn something down to match the drive signal to the plate voltage. If you also scale the PI it partially accomplishes that for you but the PI character changes some.
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